Security Clearance Jobs in Colorado

Date Posted:2026-07-09Country:United States of America Location:US-CO-AURORA-S75 ~ 16800 E Centretech Pkwy ~ BLDG S75 Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requir...

Joint Task Force Sierra (JTF Sierra) is SNC's rapid-innovation, defense startup-minded cell within IAS, focused on scouting technology gaps, rapidly developing minimum-viable prototypes, demonstrating...

If you are adept at grasping and translating technical ideas, enjoy forming diverse teams for a mission, and have experience in the US Military, US Department of Defense, or Aerospace & Defense indust...

Do you have a passion for supporting leaders and a knack for seamlessly executing projects and tasks? Then you're exactly who we're looking for to join our team! As an Administrative Assistant III, yo...

Description At System High Corporation-a Top Washington-Area Workplace (The Washington Post, 2023-2025), a Top Workplaces Culture Excellence honoree (April 2025), and a three-time VETS Indexes 3-Star ...

R-00186586Description The McMurdo Research Associate supports a variety of scientific research projects in the physical and astrophysical sciences at McMurdo Station during the austral summer (October...

R-00187070Description Are you ready to build software that makes a real-world impact? Leidos is seeking a talented Mid-Level Full Stack Software Engineer to join the Chinook Program supporting an Inte...

R-00187068Description Are you passionate about leading high-performing Agile teams and delivering mission-critical capabilities that make a real-world impact? Leidos is seeking an experienced Senior R...

R-00187062Description Are you ready to shape how mission-critical technology is adopted across the Intelligence Community? Leidos is seeking a creative, collaborative, and mission-driven Senior Traini...

R-00187058Description Are you ready to be the technical backbone of a mission that matters? Leidos is seeking a highly motivated Senior Systems Administrator/Help Desk Engineer to support a cutting-ed...

Activity Security Representative 2's primary function is to provide multi-disciplined security support to a customer's facility and organization. The position will provide "day-to-day" support for Col...

Minimum Clearance Required Top Secret Responsibilities I2X Technologies is a reputable technology services company to the Federal Government. Whether the focus is on space exploration, national secu...

At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the bou...

Description SciTec, a wholly owned subsidiary of Firefly Aerospace, is a dynamic non-traditional defense contractor that delivers advanced technologies in support of U.S. National Security and Defense...

Job Description The propulsion group at BAE Systems Space and Mission Systems (SMS) sector is looking for a collaborative, team-centric engineer to join our team. The propulsion group is responsible f...

Job Description Our employees work on the world's most advanced electronics - from detecting threats for F-35 pilots to illuminating the night for soldiers. Spanning air, land, sea, and space, we are ...

ClearanceJobs is actively seeking a Principal Systems Engineer for our client located in Louisville, CO or Centennial, CO. ClearanceJobs is the largest career network for professionals with federal go...

Duties USNORTHCOM CCC Collective Training Responsible for the development and implementation of all training to ensure the USN OR TH COM CCC is mission ready for its CJCS-directed mission. Develops a...

Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.  Sierra Space team members share a spirit of innovation and col...

Sierra Space Careers: At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.  Sierra Space team members share a spirit of innovation and col...